The Metro SubwayLink is a rapid transit line serving the greater area of Baltimore, Maryland, in the United States, and is operated by the Maryland Transit Administration. The segment in Downtown Baltimore is underground, and most of the line outside the central city is elevated or at surface grade. In 2021, the line had a ridership of 1,667,400, or about 4,200 per weekday as of the third quarter of 2022. From Wikipedia
